The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 1999
Filed:
Mar. 26, 1997
Applicant:
Inventor:
Richard Billings Merrill, Woodside, CA (US);
Assignee:
Foveonics, Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
257292 ; 257290 ; 257291 ;
Abstract
In an active pixel sensor cell, the blue response of the cell is balanced by utilizing a photodiode in lieu of a photogate, and the noise is reduced by quickly reading the voltage on a node, transferring the collected charge from the photodiode onto the node, and then again reading the voltage on the node.